Car-truck.



S. HANSSON.

C'AR TRUCK.

Armenian meu um. le. m5.

Patented Jan. 2,1917.

2 SHEETS-SHEET 2.

FIG. 2

S. HANSSUN.

CAR TRUCK.

APPLICATION mw 1^n.16.|s1s.

i, 1,211,146. l *Ilwnted Jan.2,`1917.

' 9 2 SHETS-SHEET FIGA INVENTOR SOREN HANSSON', 0F NEW GLASGOW, NOVASCOTIA, CANADA.

CAR-TRUCK Specification of Letters Patent.

Patented Jan. 2, 1917.

Application led January 16, 1915. Serial No. 2,550.

To all whom z't may concern:

Be it known that I, SoREN HANssoN, a resident of New Glasgow, in theProvince of Nova Scotia and Dominion of Canada, have invented a new anduseful Improvement in Car-Trucks, of which the following is aspecification.

This invention relates to railwa car trucks, and particularly to theside rames thereof.

The object of the invention is to provide an improved truck side frameconstruction which can be readily assembled in the railway shop, whichcan be artly built up out of ordinary rolled stock bars, which is veryrigid and is thoroughly reinforced against loosening or bending underservice conditions, and in which all lateral play between the columnpost or journal box and arch bars is positively prevented.

A further object of the invention is to provide an improved truck sideframe which does away with the usual column post bolt, and whichtherefore is stronger and more durable than truck side frames as nowconstructed.

A further object of the invention is to provide a ltruck side framehaving the column post formed in one piece so that it forms a solid,rigid connection between the arch bars and not only strengthens theconstruction but also enables it to be more readily and cheaplyassembled.

Further objects of the invention are in art obvious and in part willappear more 1n detail hereinafter.

In the drawings, Figure 1 represents a side elevation, partly insection, of one half of a truck side frame embodying the invention; Fig.2 is a sectional, elevation on the lie 2 2, Fig. 1, and showing thecolumn ost and the arch bars connected thereto; Fig. 3 is a detailedsectional elevation through the upper end of the column post and showingthe top arch bar in cross section, and illustratin a modification; Fig.4 is a side elevation o the construction shown in Fig. 3; Fig. 5 is alongitudinal section through the joint between the top .arch bar and t eup er `end of the column post and showing a fiirther modification; Fig.'6 is a cross section on the line 6 6, Fig. 1; Fig. 7 is a detail view ofa brake hanger loop; and Fig. 8 is a longitudinal sectional view throughthe upper end of the journal box and showin a modified form ofconnection to the arch ars. v

The truck frame shown in the drawings comprises top arch bar l, lowerarch bar 2, tic bar 3, column post 4, and journal box 5, all assembledin the usual manner of arranging the several parts of a truck sideframe.

The column post 4 is of special construction, being formed of cast orforged metal and in one piece so that it provides a rigid connectionbetween the top and bottom arch bars. As shown, the column post has acavity or channel 6 on its inner face to enable the bolster to beinserted after the side frame is assembled. On its opposite face it isprovided with a hook 7 for receiving the brake hanger loop 8. This hookmay be formed integral with the column post but as shown is integralwith a transverse web 4 extending between two vertical side flanges 4Pon the inner side of the column post. Its upper and' lower ends straddlethe top and bottom arch bars l and 2 respectively, the upper end beingprovided with side arms or extensions 9 lying at the sides of the toparch bar l, and its lower end being provided with depending side arms orextensions l() lying at the sides of the bottom arch bar. This enablesthe arch bars to be bent to the proper form from regular bar stock andassembled with the journal box 5, after which the column posts can bcinserted in 'an inclined position and then turned up and secured intheir final position. The sidearms of the column post prevent side playbetween the column post and arch bars and the arms at the lower end ofthe column post tie the bottom arch bar 2 `and the tie bar 3 together,so that they cannot escape from each other. The column post is alsoconnected to the arch bars by wedges which take up all play and tightenup all of the 'oints so as to produce a very strong and solid truss. Asshown, the side arms 10 at the lower end of the column post are providedwith apertures 11 to receive a' cross wedge 12, which is driven in withheavy pressure after the truss has been assembled and which draws thecolumn ost tightly down against the bottom arch ar. A similar wedge 13is inserted between the upper end of the column post and the top archbar 1, so as to take up all play between the column post and the archbars. The wedges 12 and 13 may be headed up at both ends in order tosecure them in place, nr may be of the form shown at 14 in Fig. 3, wherethe wedge is provided at its smaller end with a threaded shank 15 toreceive a nut 16. Said wedges preferably are fiat on one side andcurved-on the other, as shown at 30, to fit a curved seat on the' columnpost. This enablesl them to tilt or adjust themselves, when driven incold, and thereby insure a good bearing on the arch bars.

The upper and lower ends of the column post may be either open orclosed, as desired. Figs. 3 and 4 show an arrangement where the upperend of the column post is open or, in other words, the outer ends of theside arms 9 of the 4column post are free of connection with each otherand merely straddle the sides of the arch bar. The lower end of thecolumn post may be constructed in a similar manner. In the forms shownin Figs. 1 and 2 the outer ends of the arms at the upper and lower endsof the column post are connected by an integral cross member 17, whichforms a loop wholly surrounding*l the arch bar and materially increasest e strength of the truss as a whole, as it prevents the side arms fromopening up and permitting the arch bars to escape. With this form oftruss the arch bars must be inserted endwise through the open loops toassemble the truss, the wedgesl being driven in to finally tighten upall of the joints.

The journal box 5 is of the usual form and is connected to the arch bars1 and 2 and tie bar 3 by the usual bolts passing through apertures 18 inthe journal box and bars.

To further increase the strength of the truss and prevent play betweenthe parts, the upright compression members of the truss, such as thecolumn posts and journal box, are'provided with direct interlockingconnectlons with the arch bars, such as by a dowel pin orprojection onone part interitt-ing with a socket or aperture in the other part. It isimmaterial whether the dowel pin is on the upright compression memberlor on the arch bar. As shown in Fig..1, the lower endof the column post4 is provided with a dowel pin or projection 19 fitting within acorrespondingV socket or depression in the lower arch bar 2. Said pinand its ysocket may be slightly tapered or conical in order to provide aneat fit and secure a wedging action and tight connection between thecolumn post and arch bar when the wedge 12 is driven in. The crossmember 17 of the loop at the u per end of the column post is alsmprovidwith a similar pin or projection 19* which fits in a. corresponding seator socket in the upper surface of the top arch bar 1. These dowel pinsform guides for properly locating the column post with reference to thearch bars and wholly prevent any relative horizontal movementtherebetween. The sockets preferably extend only part way through thearch bars, which secures the benefits of the interlocking or dowelVconnection without materially decreasing the strength of the arch bars.

As shown in Figs. 3 and 4, the dowel pin 19b at the upper end of thecolumn post may be located on the column post, with the socket in thelower surface of the up er arch bar. Fig. 5 shows an arrangement W erethe dowel pin, marked 19, is formed by punching or forging out a portionof the upper arch bar to form a projection which fits within a socket oraperture in the upper end of the column post. Similar connections areprovided between the journal box and` arch bars, two forms of. saidconnections being shown.

In Fig. 1 the journal box is provided with an upwardly extending pin orprojection 19d which fits within a corresponding seat or socket in thelower face of the lower arch bar 2. Fig. 8 shows an arrangement in whichthe upper and lower arch bars are connected above the journal box by abolt or rivet 20, which isprovided at its lower end with a head 19 whichfits within a socketor depression formed within the upper face of thejournal box. The dowel connections between the journal box and arch barsprevent relative horizontal movement and form a rigid and solidconnection between theeeparts. Similar connections may also be provided,if desired, between the lower face Qi' the journal box and the tie bar3.

To furtfi'er increase the sidewise rigidity of the truss and preventshearing strain on the bolts for connecting the journal box and archbars, I provide a suitable clamp for connecting the two arch barsadjacent the journal box. As shown, these clamps consist of two sidemembers 21 having grooves or channels 22, ea/chmember' being arranged tostraddle the side edges of the tw'o arch bars. The side walls of thechannels are preferably slightly inclined or tapered, as shown at 23.The two clamps are placed over the arch bars and are then connected inany suitable manner, as by a rivet 24 headed over on both ends. Whenthisrivet cools and shrinks it draws the clamps tightly against the archbars so that they wedge between the inclined walls of the grooves in theclamps and form a close and firm connection which prevents all lateralplat between the arch bars. The clamps descri ed also increase thebending stren h of the arch bars where they are appli and also peventrelative longitudinal movement tween the arch bars.

The brake hanger loop 8 is forged in one if desired, be welded at thethe dotted line 25. One or both of its side portions are slightlyfiattened, as at 26, to enable it to be slipped through the opening 27above the hook 7, after which the loop is turned to its proper positionon said hook, and in which position its round body cannot escape throughthe restricted passage 27. This prevents loss of the brake hanger loop.

The truck side frame described is very strong and rigid and the partsare not liable to work loose under the racking strains and stresses ofservice. It is iully reinforced at all of the usual weak points andd'oes away entirely with the usual column post for connecting the columnto the arch bars. It can be readily assembled and can also be built upin the ordinary railway shop by forming the arch bars and tie bar fromordinary rolled stock bars and assembling them with the special columnpost. The frame may be constructed at relatively low cost and is alsovery durable'.

lVhat I claim is 1. A truck side frame, comprising arch bars, integralcolumn posts connecting the same, and wedge members whose length isperpendicular to the plane of the frame and arranged to tighten andconnect said arch bars and column posts.

2. A truck side frame, comprising upper and lower arch bars, integralcolumn posts connecting the same, and wedges driven in between said archbars and portions of said column posts for tightening'and connecting thesame.

3. A truck side frame', comprising upper and lower arch bars, integralcolumn posts connecting the same and'having side arms embracing saidbars, said arms being provided with openings, and wedges driven inthrough said openin s for securing the co1- umn posts to the arc bars.

4. A truck side frame, comprising arch bars, integral column postsconnecting the same, said column posts being provided with side armsstraddling said bars and lateral piece and may, bottom, as alongextending wedges connecting said column posts and arch bars.

5. A truck side frame, comprising upper and lower arch bars, integralcolumn posts connecting said arch bars, interlocking c0nnections betweensaid column posts and arch bars at each en'd of said column posts, ajournal box, and dowel connections between said journal box and archbars.

6. A truck side frame, comprising upper and lower arch bars, integralcolumn posts lying between said bars and at their ends provided withintegral loops surrounding the same, and Wedges passing th'rough sidemembers of said loops and securing said posts and arch bars together.

7. A truck side frame, comprising upper and lower arch bars, integralcolumn posts lying between said bars and at their ends provided withintegral loops surrounding the same, wedges passing through side membersof said loops and securing said posts and arch bars together, and dowelconnections between the end portions of said column posts and said archbars.

8. A truck side frame, comprising upper and lower arch bars, columnposts connecting the same and secured thereto, a journal box to whichthe arch bars are secured, and clamping members arranged to embrace andengage said arch bars adJacent to said journal box and prevent lateralplay therebetween.

9. A truck side frame, comprising upper and lower arch bars, columnposts connecting the same and secured thereto, a journal box to whichsaid arch bars are secured, and grooved clamping members adjacent tosaid journal box and arranged to receive both of said arch bars andprevent lateral play therebetween.

In testimony whereof, I have hereunto set my band.

SOREN HANSSON.

Witnesses:

SADm M. Plums, JEAN I. REID.

